Best OBDII program

I am looking for a good decent program to monitor ODBII, also i was hoping to be able to run some dyno type stuff myself just to get a rough number... if you know of any program please let me know, thanks!

Why don't you give our ScanXL software a try? It supports a virtual dyno and drag strip, as well as full diagnostics and data logging support, custom script parameters, log file bookmarks, and is upgradable to support manufacturer enhanced diagnostics.

I once checked the PCMSCAN on my Suzuki grand vitara 2006 and was dissapointed:
it seemed unstable and I needed to re-connect to correctrly read all the sensors.
also it couldn't read some sensors like fuel pressure etc.

How long ago did you last check? We have made numerous improvements and bug fixes to our scan tool software over the years. So chances are pretty good that any problems you were seeing have been fixed.

Also, you have to keep in mind that not all vehicles support all parameters. So even though PCMSCAN supports reading the fuel pressure, your vehicle might not support that parameter.

nickelaj, take your pick. Any program will do, but it is possible that you will need an interface with Can. Now some programs are better then others, if you want to be able to read all data you need something up to date and that usually means you have to pay for it.
This is assuming the car is EOBD-compliant, which is the case if you live in Europe.

The support is not limited to a single vehicle. All pid's are the same on all vehicles. That's the beauty of EOBD, JOBD and OBD2. However, not all vehicles use the same pids. Some pids are mutual exclusive. There are 3 types of pids for oxygen sensors, obviously the car will only use one type for each sensor. There are also pids for a maximum of 8 oxygen sensors, but most cars have 2, 3 or 4 sensors.

Another thing that defines the support is which version of J1979 is implemented in the software. Since the introduction back in 1996 for OBD2 a lot of pids have been added. It would be nice if all the guys promoting their own product over here would tell how many pids they support, so we can judge for our selves how good their programs really are.